PyPi badge

Author: Thomas Pinder

README.md

@@ -4,6 +4,7 @@
 [![codecov](https://codecov.io/gh/thomaspinder/gpjax/branch/master/graph/badge.svg?token=DM1DRDASU2)](https://codecov.io/gh/thomaspinder/gpjax)
 [![CodeFactor](https://www.codefactor.io/repository/github/thomaspinder/gpjax/badge)](https://www.codefactor.io/repository/github/thomaspinder/gpjax)
 [![Documentation Status](https://readthedocs.org/projects/gpjax/badge/?version=latest)](https://gpjax.readthedocs.io/en/latest/?badge=latest)
+[![PyPI version](https://badge.fury.io/py/GPJax.svg)](https://badge.fury.io/py/GPJax)
 [![Downloads](https://pepy.tech/badge/gpjax)](https://pepy.tech/project/gpjax)
 
 [**Quickstart**](#simple-example)